<!DOCTYPE html>
<meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
<!-- three.js library -->
<script src='vendor/three.js/build/three.js'></script>
<!-- jsartookit -->
<script src="../vendor/jsartoolkit5/build/artoolkit.min.js"></script>
<script src="../vendor/jsartoolkit5/js/artoolkit.api.js"></script>
<!-- include threex.artoolkit -->
<script src="../src/threex/threex-artoolkitsource.js"></script>
<script src="../src/threex/threex-artoolkitcontext.js"></script>
<script src="../src/threex/threex-arbasecontrols.js"></script>
<script src="../src/threex/threex-armarkercontrols.js"></script>
<script>THREEx.ArToolkitContext.baseURL = '../'</script>

<body style='margin : 0px; overflow: hidden; font-family: Monospace;'><div style='position: absolute; top: 10px; width:100%; text-align: center; z-index: 1;'>
	<a href="https://github.com/jeromeetienne/AR.js/" target="_blank">AR.js</a> - three.js marker root
	<br/>
	Contact me any time at <a href='https://twitter.com/jerome_etienne' target='_blank'>@jerome_etienne</a>
</div><script>
	//////////////////////////////////////////////////////////////////////////////////
	//		Init
	//////////////////////////////////////////////////////////////////////////////////

	// init renderer
	var renderer	= new THREE.WebGLRenderer({
		antialias	: true,
		alpha: true
	});
	renderer.setClearColor(new THREE.Color('lightgrey'), 0)
	renderer.setSize( 640, 480 );
	renderer.domElement.style.position = 'absolute'
	renderer.domElement.style.top = '0px'
	renderer.domElement.style.left = '0px'
	document.body.appendChild( renderer.domElement );

	// array of functions for the rendering loop
	var onRenderFcts= [];

	// init scene and camera
	var scene	= new THREE.Scene();

	//////////////////////////////////////////////////////////////////////////////////
	//		Initialize a basic camera
	//////////////////////////////////////////////////////////////////////////////////

	// Create a camera
	var camera = new THREE.Camera();
	scene.add(camera);

	////////////////////////////////////////////////////////////////////////////////
	//          handle arToolkitSource
	////////////////////////////////////////////////////////////////////////////////

	var arToolkitSource = new THREEx.ArToolkitSource({
		// to read from the webcam 
		// sourceType : 'webcam',
		
		// to read from an image
		// sourceType : 'image',
		// sourceUrl : THREEx.ArToolkitContext.baseURL + '../data/images/img.jpg',		

		// to read from a video
		sourceType : 'video',
		sourceUrl : THREEx.ArToolkitContext.baseURL + '../data/videos/headtracking.mp4',		
	})
	arToolkitSource.init(function onReady(){
		onResize()
	})
	
	// handle resize
	window.addEventListener('resize', function(){
		onResize()
	})
	function onResize(){
		arToolkitSource.onResize()	
		arToolkitSource.copySizeTo(renderer.domElement)	
		if( arToolkitContext.arController !== null ){
			arToolkitSource.copySizeTo(arToolkitContext.arController.canvas)	
		}	
	}

	////////////////////////////////////////////////////////////////////////////////
	//          initialize arToolkitContext
	////////////////////////////////////////////////////////////////////////////////	

	// create atToolkitContext
	var arToolkitContext = new THREEx.ArToolkitContext({
		cameraParametersUrl: THREEx.ArToolkitContext.baseURL + '../data/data/camera_para.dat',
		detectionMode: 'mono',
	})
	// initialize it
	arToolkitContext.init(function onCompleted(){
		// copy projection matrix to camera
		camera.projectionMatrix.copy( arToolkitContext.getProjectionMatrix() );
	})

	// update artoolkit on every frame
	onRenderFcts.push(function(){
		if( arToolkitSource.ready === false )	return

		arToolkitContext.update( arToolkitSource.domElement )
	})
	
	
	////////////////////////////////////////////////////////////////////////////////
	//          Create a ArMarkerControls
	////////////////////////////////////////////////////////////////////////////////
	
	var markerRoot = new THREE.Group
	scene.add(markerRoot)
	var artoolkitMarker = new THREEx.ArMarkerControls(arToolkitContext, markerRoot, {
		type : 'pattern',
		// patternUrl : THREEx.ArToolkitContext.baseURL + '../data/data/patt.hiro',
		patternUrl : THREEx.ArToolkitContext.baseURL + '../data/data/patt.kanji',
	})

	//////////////////////////////////////////////////////////////////////////////////
	//		add an object in the scene
	//////////////////////////////////////////////////////////////////////////////////

	// add a torus knot	
	var geometry	= new THREE.CubeGeometry(1,1,1);
	var material	= new THREE.MeshNormalMaterial({
		transparent : true,
		opacity: 0.5,
		side: THREE.DoubleSide
	}); 
	var mesh	= new THREE.Mesh( geometry, material );
	mesh.position.y	= geometry.parameters.height/2
	markerRoot.add( mesh );
	
	var geometry	= new THREE.TorusKnotGeometry(0.3,0.1,64,16);
	var material	= new THREE.MeshNormalMaterial(); 
	var mesh	= new THREE.Mesh( geometry, material );
	mesh.position.y	= 0.5
	markerRoot.add( mesh );
	
	onRenderFcts.push(function(){
		mesh.rotation.x += 0.1
	})

	//////////////////////////////////////////////////////////////////////////////////
	//		render the whole thing on the page
	//////////////////////////////////////////////////////////////////////////////////

	// render the scene
	onRenderFcts.push(function(){
		renderer.render( scene, camera );
	})

	// run the rendering loop
	var lastTimeMsec= null
	requestAnimationFrame(function animate(nowMsec){
		// keep looping
		requestAnimationFrame( animate );
		// measure time
		lastTimeMsec	= lastTimeMsec || nowMsec-1000/60
		var deltaMsec	= Math.min(200, nowMsec - lastTimeMsec)
		lastTimeMsec	= nowMsec
		// call each update function
		onRenderFcts.forEach(function(onRenderFct){
			onRenderFct(deltaMsec/1000, nowMsec/1000)
		})
	})
</script></body>
